3 papers
cond-mat.mes-hall2026
Helical Current of Propagating Dirac Electrons and Geometric Coupling to Chiral Environments
Ju Gao, Fang Shen
We show that a propagating Dirac electron with intrinsic spin generically carries a real--space helical conserved current, even in the absence of orbital angular momentum. Using ex…
quant-ph2025
Angular--Momentum--Resolved Aharonov--Bohm Coupling Energy
Ju Gao, Fang Shen
We present an angular--momentum--resolved energetic formulation of the Aharonov--Bohm (AB) response for a confined Dirac electron based on two gauge--invariant interaction function…
physics.gen-ph2025
Electron Wave-Spin Qubit
Ju Gao, Fang Shen
As a continuation of our earlier investigations into electron wave--spin~\citep{GaoJOPCO22,EntropyEvaSpin2024}, we analyze the electron spin and its qubit in a cavity by treating t…